Display panel or portion thereof with a graphical user interface



The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

The sole FIGURE is a front view of a display panel or portion thereof with a graphical user interface showing our design.

The outermost broken line rectangle illustrates a display panel or portion thereof that forms no part of the claimed design. 

CLAIM The ornamental design for a display panel or portion thereof with a graphical user interface, as shown and described. 